If you care to buy this product, do not take that if you have an air rifle, do not buy that if there is very little vibration when shooting.
Rifle hunting or recreational shooting forget right away just to your target, and then because the decline may simply break, won or that I know yet fixings see the bezel remains cheap.
Bulk intended for beginners, who are new to lead to shooting with air rifle, for fun.
only advantage: its price